Answer:
4<425>-4.12
Step-by-step explanation:
hopefully this was helpful
Answer:
<h2>x = -17</h2>
Step-by-step explanation:

Answeer:
Quadrilateral, four sides, parallel
Step-by-step explanation:
The first system of equations has infinite solutions because you can write one equation as a linear combination of the other.The second system of equations has no solution because mathematically an incoherence results -14 = -2 / 7I attach the solutions for greater understanding.
x-4y=12; 5x-20y=60 --> infinitely many
y-7x=-14; 7y-49x=-2 --> none
8 minutes has 8*60 or 480 seconds. If we divide 3000 meters by 480 seconds, we get an average speed of 6.25 m/s.
Answer is D.